1 /* $NetBSD: if_agrvar_impl.h,v 1.12 2023/03/26 19:10:33 andvar Exp $ */ 2 3 /*- 4 * Copyright (c)2005 YAMAMOTO Takashi, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _NET_AGR_IF_AGRVAR_IMPL_H_ 30 #define _NET_AGR_IF_AGRVAR_IMPL_H_ 31 32 /* 33 * implementation details for agr(4) driver. (contrast to if_agrvar.h) 34 */ 35 36 #include <sys/mutex.h> 37 #include <sys/queue.h> 38 #include <sys/workqueue.h> 39 40 struct agr_port; 41 struct agr_softc; 42 43 struct agr_port { 44 struct ifnet *port_agrifp; 45 struct ifnet *port_ifp; 46 TAILQ_ENTRY(agr_port) port_q; 47 int (*port_ioctl)(struct ifnet *, u_long, void *); 48 void *port_iftprivate; 49 int port_flags; 50 u_int port_media; 51 char port_origlladdr[0]; 52 }; 53 #define AGRPORT_COLLECTING 0x00000001 54 #define AGRPORT_DISTRIBUTING 0x00000002 55 #define AGRPORT_PROMISC 0x00000004 56 #define AGRPORT_LADDRCHANGED 0x00000008 57 #define AGRPORT_ATTACHED 0x00000010 58 #define AGRPORT_LARVAL 0x00000020 59 #define AGRPORT_DETACHING 0x00000040 60 61 struct agr_iftype_ops { 62 63 void (*iftop_tick)(struct agr_softc *); 64 void (*iftop_porttick)(struct agr_softc *, struct agr_port *); 65 void (*iftop_portstate)(struct agr_port *); 66 67 /* 68 * iftop_ctor: 69 * - inherit setting (eg. L1 address) from the first port. 70 * - initialize if_output, if_input, if_dlt, etc. 71 * (in the case of IFT_ETHER, ether_ifattach. 72 */ 73 74 int (*iftop_ctor)(struct agr_softc *, struct ifnet *); 75 76 void (*iftop_dtor)(struct agr_softc *); 77 78 /* 79 * iftop_portinit: 80 * propagate setting to a newly added port. 81 */ 82 83 int (*iftop_portinit)(struct agr_softc *, struct agr_port *); 84 85 /* 86 * iftop_portfini: 87 * restore setting of a port being removed. 88 */ 89 int (*iftop_portfini)(struct agr_softc *, struct agr_port *); 90 91 struct agr_port *(*iftop_select_tx_port)(struct agr_softc *, 92 struct mbuf *); 93 uint32_t (*iftop_hashmbuf)(struct agr_softc *, struct mbuf *); 94 95 int (*iftop_configmulti_port)(struct agr_softc *, struct agr_port *, 96 bool); 97 int (*iftop_configmulti_ifreq)(struct agr_softc *, struct ifreq *, 98 bool); 99 }; 100 101 struct agr_ifreq { 102 char ifr_name[IFNAMSIZ]; 103 struct sockaddr_storage ifr_ss; 104 }; 105 106 struct agr_softc { 107 kmutex_t sc_entry_mtx; 108 kmutex_t sc_lock; 109 kcondvar_t sc_ports_cv; 110 kcondvar_t sc_insc_cv; 111 volatile int sc_noentry; 112 volatile int sc_insc; 113 volatile bool sc_wrports; 114 volatile int sc_rdports; 115 volatile int sc_paused; 116 struct workqueue *sc_wq; 117 struct work sc_wk; 118 struct callout sc_callout; 119 int sc_nports; 120 TAILQ_HEAD(, agr_port) sc_ports; 121 const struct agr_iftype_ops *sc_iftop; 122 uint32_t sc_rr_counter; /* distributor algorithm specific */ 123 void *sc_iftprivate; 124 int sc_nvlans; /* number of vlans attached */ 125 struct ifnet sc_if; /* should be the last. see agr_alloc_softc(). */ 126 }; 127 128 #define AGR_SC_FROM_PORT(port) \ 129 ((struct agr_softc *)(port)->port_agrifp->if_softc) 130 131 #define AGR_LOCK(sc) agr_lock(sc) 132 #define AGR_UNLOCK(sc) agr_unlock(sc) 133 #define AGR_ASSERT_LOCKED(sc) KASSERT(mutex_owned(&(sc)->sc_lock)) 134 135 void agr_lock(struct agr_softc *); 136 void agr_unlock(struct agr_softc *); 137 138 int agrport_ioctl(struct agr_port *, u_long, void *); 139 140 struct agr_softc *agr_alloc_softc(void); 141 void agr_free_softc(struct agr_softc *); 142 143 int agr_xmit_frame(struct ifnet *, struct mbuf *); /* XXX */ 144 145 #define AGR_ROUNDROBIN(sc) (((sc)->sc_if.if_flags & IFF_LINK0) != 0) 146 #define AGR_STATIC(sc) (((sc)->sc_if.if_flags & IFF_LINK1) != 0) 147 148 int agrtimer_init(struct agr_softc *); 149 void agrtimer_destroy(struct agr_softc *); 150 void agrtimer_start(struct agr_softc *); 151 void agrtimer_stop(struct agr_softc *); 152 153 void agrport_monitor(struct agr_port *); 154 155 #endif /* !_NET_AGR_IF_AGRVAR_IMPL_H_ */ 156